Out-of-bounds Write Affecting dnsmasq package, versions <2.92-4


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.48% (38th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-DNSMASQ-16100356
  • published18 Apr 2026
  • disclosed17 Apr 2026

Introduced: 17 Apr 2026

CVE-2026-6507  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Debian:unstable dnsmasq to version 2.92-4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dnsmasq package and not the dnsmasq package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A flaw was found in dnsmasq. A remote attacker could exploit an out-of-bounds write vulnerability by sending a specially crafted BOOTREPLY (Bootstrap Protocol Reply) packet to a dnsmasq server configured with the --dhcp-split-relay option. This can lead to memory corruption, causing the dnsmasq daemon to crash and resulting in a denial of service (DoS).

CVSS Base Scores

version 3.1